The Government of the Republic of Slovenia has released a draft proposal to implement mandatory e-invoicing and e-reporting for B2B and B2C transactions. This implementation would mark a significant shift in the country’s e-invoicing landscape.
Should the proposal be approved, taxpayers will be subject to a two-fold obligation: they must issue and exchange B2B invoices electronically and report B2B and B2C transactional data to the tax authority. Although clearance will not be required in the e-invoice issuance process, transactional data must be reported to the tax authority in near real-time, which shows that Slovenia is aligning with the global trend of governments implementing Continuous Transaction Controls (CTC).
Taxpayers under scope are all business entities registered in Slovenia’s Business Register (PRS), including companies, self-employed entities and associations. To register in the PRS, business entities must have a registered office or address in the territory of the Republic of Slovenia.
This new system also introduces a decentralised reporting and exchange model facilitated by registered service providers, called e-route providers. These are similar to the network exchange requirements in France and those planned for Spain.
The proposed mandatory e-invoicing and CTC e-reporting will be introduced from 1 June 2026.
E-invoicing requirements
The e-invoicing mandate would require taxpayers to issue, send and receive e-invoices and other e-documents for B2B domestic transactions.
Under the Slovenian proposal, e-invoices refer to an invoice or similar accounting document that records business transactions, regardless of what they are called. This includes credit notes, debit notes, advance invoices, payment requests, etc.
There are multiple supported formats for the exchange of e-invoices:
- e-SLOG standard, developed by the Chamber of Commerce of Slovenia, which is compatible with EN16931 and already in use in the B2G sector
- European standard EN 16931 for e-invoices, as per Directive 2014/55/EU
- Other internationally recognised standards agreed mutually by the parties
The proposal allows three methods for e-invoice issuance and exchange:
- E-route providers, which are registered service providers facilitating the issuance and exchange of e-invoices and e-documents.
- Direct exchange between the issuer and recipient’s information systems (excluding e-mail transmission)
- The authority’s free application for taxpayers with a smaller business volume
In cases where the issuer and recipient use e-invoice different standards, if using e-route providers, the recipient’s provider must convert the e-invoice to the syntax accepted by the recipient.
Regarding B2C transactions, consumers will have the option to receive either e-invoices or paper invoices. This must be agreed upon by the parties. If an e-invoice is issued, suppliers will be obliged to provide a visualised content version (e.g., PDF).
CTC e-reporting requirements
The proposal states that taxpayers must electronically report B2B and B2C transactional data, including cross-border transactions, to the Financial Administration of the Republic of Slovenia (FURS) within eight days of invoice issuance or receipt. Reporting must be done exclusively in the e-SLOG standard.
The reporting requirement extends to B2C and cross-border transactions, regardless of whether an invoice was issued electronically. This ensures that transactions such as these, for which e-invoicing is not mandatory, are reported to the FURS allowing it a comprehensive collection of taxpayers’ transactional data.
The selected method for e-invoice exchange will impact the e-reporting of transactional data. If the parties use e-route providers, both the issuer’s and recipient’s providers must send the e-invoice to FURS. For direct exchanges, both parties must separately report their transactions to FURS.
E-route provider requirements
The draft establishes obligations and certain technical requirements applicable to e-route providers. According to the Slovenian government, the requirements to become an e-route provider are comparable to those in France but without the need for certification
However, the public authorities will maintain a list of registered e-route service providers who must fulfil certain requirements, some of which are already listed in the draft law. The proposal does not state explicit local registration/establishment rules for e-route providers. The government will publish further regulations detailing the application process and other applicable requirements.
Next steps
The government must take certain crucial steps before enforcing the mandate. The Parliament must officially approve the draft law before the requirements are confirmed.
Moreover, publication of the technical specifications and further regulations are awaited, including details of the data reporting methods to the tax authority. Slovenia will need to apply for a derogation from the VAT Directive with the EU Commission to enforce mandatory B2B e-invoicing before the adoption of ViDA (VAT in the Digital Age).
For businesses operating in Slovenia, this will mean impactful changes to their outbound and inbound processes by 1 June 2026. This includes the acquisition of software or update of their systems to issue, send and receive e-invoices, adapting to the allowed e-invoicing formats and connecting to the FURS or availing the services of e-route providers to electronically report their data.
Have questions about how these changes could affect your operations? Ask our team of experts.
